The Hopper Mine is an anti-personnel proximity mine that hops into the air towards the target before exploding, much like a bouncing betty. These mines are carried and deployed by Shield Scanners. They are vaguely dome-shaped with three sharp "legs". When dropped, the mines use these legs to bounce around until they land facing up on a smooth surface. They then jam the legs into the ground, attaching themselves very firmly. Papercraft from MooNFish's Papercrafts website.